Despite winning rave reviews, Mr Winehouse has said it focused too much on his daughter's battle with drugs and skipped over her "sense of fun".

He said last year: "We are very disappointed, it missed a trick and it was very hurtful for the family."

Amy director Asif Kapadia after winning the Academy Award for best documentary feature film at the Oscars Credit:
DANNY MOLOSHOK

Hanging on to their Oscars, Amy director Kapadia and producer James Gay-Rees said that they have noticed the conversation about Winehouse seems to have shifted since the release of the film.

Kapadia said: "A lot of people, particularly in the US, summed up Amy in one word: She's a trainwreck."

Now, he added, they say "there's so much more to her".

A young Amy Winehouse performingCredit:
Handout

"Most people say they just want to give her a hug. That's great but sadly she didn't get that love when she was around but that's the biggest change I've seen. I think there's a much better feeling people have about her."

Questioned about Mr Winehouse's opposition to the film, Gay-Rees said the film did not intend to cast blame on anyone.

He added: "The film is about Amy. She became a bit of a punch bag and a bit of a bad gag. The film has opened people's eyes to her again and what a great talent she was. That's what our job was and I think we have done that and that should be enough."

Kapadia added: "Part of the aim of the film was to tell Amy's story, and for me when I started learning about her, I fell in love with her and wanted the world to see the real girl, but also how complicit we were, the things we said, the things we commented.

"Part of the mission of the film was to get people to think before they put out that horrible, nasty tweet. When I googled her I saw horrible images of her and now I see nice images of her."